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Objective:To evaluate the incidence, clinical significance and influencing factors on in-stent stenosis(ISS) after treatment of intracranial aneurysms by Pipeline embolization device(PED).Methods:A retrospective analysis was conducted on the clinical data of 161 patients with intracranial aneurysms treated with PED at the Department of Interventional Radiology of the First Affiliated Hospital of Zhengzhou University from April 2015 to July 2021. PED was implanted into the parent artery through the femoral artery approach after general anesthesia. The first DSA follow-up duration time and imaging data were collected, and the patients were divided into ISS group and non-ISS group accordingly. The degree of aneurysm occlusion was evaluated by O′Kelly-Marotta(OKM) grading scale. Univariate and multivariate logistic regression analysis were applied to identify the factors related to ISS.Results:A total of 179 PED were employed in 161 patients with 168 aneurysms. Eighty-eight (52.38%) aneurysms were treated by PED only, and 80 (47.62%) aneurysms by PED combined with coiling. After a median follow-up of 6 (5, 7) months, 31(18.45%) aneurysms had ISS within the PED, of which 16(9.52%) cases were with mild stenosis (<50%), 13 (7.74%) were with moderate stenosis (50%-75%), and 2(1.19%) were with severe stenosis (>75%). All patients with ISS showed no relevant clinical symptoms. One (0.60%) patient with ISS underwent balloon angioplasty. Univariate analysis showed that the stent diameter, aneurysm location, triglyceride level, the diameter of distal parent artery, and the diameter of proximal parent artery were associated to ISS. Further multivariate logistic regression analysis showed the stent diameter (OR=0.332, 95%CI 0.191-0.578, P<0.001) and triglyceride level (OR=1.641, 95%CI 1.034-2.605, P=0.036) were independent factors of ISS. Conclusions:ISS is a common benign complication after PED treatment. The current results suggest that small stent diameter and high triglyceride level are independent factors of ISS.
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@#Background: Unsafe blood products may cause transfusion-transmissible infections. This study aimed to evaluate the knowledge and perceptions of blood donors regarding blood safety. Methods: This was a cross-sectional study conducted in the Kelantan state of Malaysia. The questionnaire comprised 39 questions that covered areas such as donors’ social demographic information, knowledge of transfusion-transmitted diseases, blood screening and donor eligibility and perceptions towards blood safety. The knowledge score was categorised as good or poor. Results: Of the 450 distributed questionnaires, 389 were suitable for analysis. Only 18.5% of the donors had good knowledge, with 81.5% having poor knowledge. Less than 30% were aware that people with multiple sexual partners, bisexual people and male homosexual people are permanently deferred from blood donation. Only 29.4% agreed that donors are responsible if their blood causes infection. Furthermore, 39.3% assumed that they could check their HIV status through blood donation, and 10.3% and 5.4% of the respondents believed that donors are free from infection if they wear a condom during sex or only have oral sex when involved in prostitution, respectively. Conclusion: Poor knowledge and notable misperceptions concerning safe blood donation were found among blood donors. The Ministry of Health should incorporate safe blood education in future public awareness programmes.
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@#Introduction: This study was designed to determine the influence of bariatric surgery on changes in the body mass index (BMI), and the control of diabetes, hypertension and dyslipidaemia among obese patients in Malaysia. Materials And Methods: This was a retrospective cohort study undertaken at a public tertiary care centre in the state of Perak, Malaysia. Information of obese patients who underwent bariatric surgery was obtained from their medical records. The changes in the BMI, HbA1C, systolic and diastolic blood pressure (SBP and DBP), and lipid levels between three months before and after the surgery were assessed. Results: The patients (n=106) were mostly Malay (66.0%), had at least one comorbidity (61.3%), and had a mean age of 40.38±11.75 years. Following surgery, the BMI of the patients was found to reduce by 9.78±5.82kg/m2. For the patients who had diabetes (n=24) and hypertension (n=47), their mean HbA1C, SBP and DBP were also shown to reduce significantly by 2.02±2.13%, 17.19±16.97mmHg, and 11.45±12.63mmHg, respectively. Meanwhile, the mean total cholesterol, triglyceride and low-density lipoprotein levels of those who had dyslipidaemia (n=21) were, respectively, lowered by 0.91±1.18mmol/L, 0.69±1.11mmol/L and 0.47±0.52mmol/L. Conclusion: The findings suggest that in addition to weight reduction, bariatric surgery is helpful in improving the diabetes, hypertension and dyslipidaemia control among obese patients. However, a large-scale trial with a control group is required to verify our findings
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Objective To investigate the effects of dexmedetomidine combined with butorphanol on postoperative an-algesia and recovery for patient-controlled intravenous analgesia (PCIA) in parturients undergoing cesarean section. Methods Eighty-four parturients scheduled for elective caesarean section under spinal anaesthesia were randomly al-located into two groups. Control group: physiological saline infusion(0.5 μg/kg) after delivery and butorphanol (10 mg) in PCIA. Experimental group: dexmedetomidine (0.5 μg/kg) infusion after delivery and dexmedeto-midine (200 μg) with butorphanol (10 mg) in PCIA. Hemodynamic variables, the visual analogue score (VAS), the sedation score, side effects, the total pump-press number and additional analgesics cases were re-corded. The quality of recovery was evaluated by using a 40-item quality of recovery questionnaire(QoR-40) and a 9 questions fatigue score(FFS). Results Compared with control group,the VAS scores,the total pump-press number, the incidence of side effects and the FSS scores in experimental group was significantly decreased (P<0.05). In addition,the QoR-40 score at POD3 was significantly increased(P<0.05). Conclusions Dexmedeto-midine combined with butorphanol for PCIA after caesarean section decreases the consumption of butorphanol,pro-motes postoperative analgesia,alleviates fatigue,and improves postoperative recovery.
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OBJECTIVE:To observe analgesia,sedation effects and safety of flurbiprofen axetil combined with hydromorphone for postoperative patient-controlled intravenous analgesia (PCIA) after orthopedics surgery. METHODS:Totally 90 patients with combined spinal epidural anesthesia underwent lower limb surgery were selected from anesthesology department in the Affiliated Hospital of Chengde Medical College during May 2016-Jan. 2018. They were divided into SF group,H group and KH group according random number table,with 30 cases in each group. The postoperative PCIA pump drug liquid formula of SF group included Sufentanil citrate injection 2-3 μ g/kg+Tropisetron hydrochloride for injection 10 mg+0.9% Sodium chloride injection diluted to 100 mL;that of H group included Hydromorphone hydrochloride injection 0.12 mg/kg+Tropisetron hydrochloride for injection 10 mg+0.9% Sodium chloride injection diluted to 100 mL;that of KH group included Hydromorphone hydrochloride injection 0.12 mg/kg+Flurbiprofen axetil injection 50 mg+Tropisetron hydrochloride for injection 10 mg+0.9% Sodium chloride injection diluted to 100 mL. The operation time, intraoperative medication (epidural application frequency of additional ropivacaine,frequency of ephedrine and atropine),effective pressing times of analgesic pump and the analgesic effect of PCIA were observed in 3 groups. VAS score and Ramsay sedation score were observed 2,6,12,24,48 h after surgery. The hospital anxiety and depression scale (HAD) score,profile of mood states (POMS) score and the occurrence of ADR were observed before and after surgery. RESULTS:There was no statistical significance in operation time,epidural application frequency of additional ropivacaine or frequency of ephedrine and atropine among 3 groups (P＞0.05). The effective pressing times of analgesic pump in KH group were significantly lower than SF group and H group. The proportion of patients with excellent and good anesthesia effect in KH group was significantly higher than SF group and H group (P＜0.05);there was no statistical significance between SF group and H group(P＞0.05). VAS score of 3 groups 48 h after surgery were significantly lower than 6, 12,24 h after surgery;that of KH group was significantly lower than SF group and H group(P＜0.05);there was no statistical significance between SF group and H group(P＞0.05). There was no statistical significance in Ramsay score among 3 groups at different time points(P＞0.05). Before surgery,there was no statistical significance in HAD score or POMS score among 3 groups (P＞0.05). After surgery,HAD score and POMS score of KH group and H group were significantly lower than before surgery and SF group(P＜0.05);there was no statistical significance in KH group and H group,before and after surgery in SF group(P＞0.05). No vomiting,respiratory depression,pruritus and digestive tract bleeding were observed in 3 groups. The incidence of dizziness and nausea in H group and KH group were significantly lower than SF group (P＜0.05);there was no statistical significance between KH group and H group(P＞0.05). CONCLUSIONS:The flurbiprofen axetil combined with hydromorphone show good analgesic and sedative effect for PCIA after orthopedics operation,and can significantly improve emotion and mood of patients with good safety.
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Objective To observe the effectiveness of dexmedetomidine on postoperative nausea and vomiting (PONV) in patients undergoing laparoscopic cholecystectomy.Methods Seventy patients (17 males,53 females,aged 20-65 years,ASA grade Ⅰ or Ⅱ) undergoing laparoscopic cholecystectomy were randomized to receive either dexmedetomidine (group R,n=35) or dexamethasone (group D,n=35).The patients in the group R received 0.5 μg/kg bolus dose and maintenance dose at the rate of 0.5 μg·kg-1·h-1 of dexmedetomidine before intubation.The patients in the group D received 8 mg dexamethasone before intubation.The BP and HR were recorded at the following points: on arrival in the operating room (T1),before intubation (T2),5 minutes after intubation (T3),5 minutes after the beginning of the operation (T4),30 minutes after the beginning of the operation (T5),at the end of operation (T6) and 5 minutes after extubation (T7).The inhaling concentration of sevoflurane,extubation time,operation time and anesthesia time were recorded.The incidence of nausea and vomiting were recorded at 8,24,48 hours after operation.Results The incidence of nausea and vomiting at each point were similar between two groups.The HR at T2-T7 in group D was significantly lower.But MAP was similar between two groups.Conclusion 0.5 μg/kg bolus dose and maintenance dose at the rate of 0.5 μg·kg-1·h-1 of dexmedetomidine reduced the incidence of PONV in patients undergoing laparoscopic cholecystectomy,similar to dexamethasone.
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Objective To analyze the cause, diagnosis and treatment of delayed gastric emptying (DGE) after esophagectomy in a single center. Methods The clinical data of 1 294 patients who underwent esophagectomy from Jan. 2003 to Dec. 2012 in Changzheng Hospital were retrospectively analyzed. Nineteen (1.47%) cases with DGE was included in the observation group and 1 275 cases with no delayed gastric emptying were taken as controls. The age, history of diabetes, anastomotic site, surgical approach, and disassociation of stomach were compared between the two groups, and the causes which may influence gastric emptying were analyzed. The rules and treatment of DGE were summarized. Results A total of 19 cases with DGE after esophagectomy were cured by conservative treatment in our study. Univariate analysis showed that age, history of diabetes, anastomotic site, surgical approach, and disassociation of stomach were not correlated with DGE after esophagectomy (P>0.05). Conclusion The incidence rate of DGE after esophagectomy is low, with its causes remaining unclear. It directly affects patients' living quality and leads to delayed recovery, but can be cured by conservative management.
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Objective The aim of our study was to examine the clinical value of neuroendoscopic surgery in hypertensive cerebellar hemorrhage.Methods The clinical data from 38 patients with cerebellar hemorrhage were retrospectively analyzed.Thirty-eight patients included 18 cases with neuroendoscopic hematoma evacuation (neuroendoscopic group) and 20 cases with craniotomy hematoma evacuation (craniotomy group).The perioperative parameters and clinical outcome were statistically analyzed.Results Compared with craniotomy group,the mean operative time was shorter [(82.9±17.0)min vs.(177.9±28.8)min,t=12.545,P=0.000],the loss of mean blood volume was smaller [(45.1±15.6)mL vs.(197.9±29.5)mL,t=20.237,P=0.000]ml,ventricle drainage time [(3.5±1.5)d vs.(5.3±1.4)d,t=3.751,P=0.001],ICU stay time [(2.9±1.0)d vs.(4.7±1.5)d,t=4.146,P=0.000] and hospital stay time [(7.4±1.5)d vs.(9.9±2.8)d,t=3.348,P=0.002] were shorter (P＜0.05).Two weeks after surgery,1 cases died in neuroendoscopic group and 2 cases died in craniotomy group (P=1.000,P＞0.05).Three months after surgery,GOSE was greater than 4 in 14 cases in neuroendoscopic group and in 13 cases in craniotomy group and the difference was not significant (2=0.752,P=0.386,P＞0.05).Conclusion Although there are no differences in mortality and clinical outcomes between neuroendoscopic hematoma evacuation and occipital craniotomy hematoma evacuation for hypertensive cerebellar hemorrhage patients,neuroendoscopic hematoma evacuation can significantly reduce the mean operative time,the loss of mean blood volume,ventricle drainage time,ICU stay time and hospital stay time.Thus,neuroendoscopic hematoma evacuation in hypertensive cerebellar hemorrhage is safe and effective,which has a great value of application in the future.
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Objective The aim of our study was to examine the clinical value of neuroendoscopic surgery in hypertensive cerebellar hemorrhage.Methods The clinical data from 38 patients with cerebellar hemorrhage were retrospectively analyzed.Thirty-eight patients included 18 cases with neuroendoscopic hematoma evacuation (neuroendoscopic group) and 20 cases with craniotomy hematoma evacuation (craniotomy group).The perioperative parameters and clinical outcome were statistically analyzed.Results Compared with craniotomy group,the mean operative time was shorter [(82.9±17.0)min vs.(177.9±28.8)min,t=12.545,P=0.000],the loss of mean blood volume was smaller [(45.1±15.6)mL vs.(197.9±29.5)mL,t=20.237,P=0.000]ml,ventricle drainage time [(3.5±1.5)d vs.(5.3±1.4)d,t=3.751,P=0.001],ICU stay time [(2.9±1.0)d vs.(4.7±1.5)d,t=4.146,P=0.000] and hospital stay time [(7.4±1.5)d vs.(9.9±2.8)d,t=3.348,P=0.002] were shorter (P＜0.05).Two weeks after surgery,1 cases died in neuroendoscopic group and 2 cases died in craniotomy group (P=1.000,P＞0.05).Three months after surgery,GOSE was greater than 4 in 14 cases in neuroendoscopic group and in 13 cases in craniotomy group and the difference was not significant (2=0.752,P=0.386,P＞0.05).Conclusion Although there are no differences in mortality and clinical outcomes between neuroendoscopic hematoma evacuation and occipital craniotomy hematoma evacuation for hypertensive cerebellar hemorrhage patients,neuroendoscopic hematoma evacuation can significantly reduce the mean operative time,the loss of mean blood volume,ventricle drainage time,ICU stay time and hospital stay time.Thus,neuroendoscopic hematoma evacuation in hypertensive cerebellar hemorrhage is safe and effective,which has a great value of application in the future.
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This study aimed to understand the dynamic distribution of infectious bronchitis virus (IBV) Jin-13 strain in SPF chickens. Ninety-day-old SPF chickens were inoculated with Jin-13, a virulent strain, and dissected at day 1, 4, 7, 10, 14, 21, 28 or 35 post-inoculation (dpi). Samples of heart, liver, spleen, lung, trachea, kidney and duodenum were collected and the N gene was detected by Sybr Green I real-time quantitative RT-PCR assays. The established method had a good linear correlation from 7.77 x 10(8) to 10(0) copies/microL. SPF chickens developed typical clinical signs of IBV at the 4th dpi, and the IBV viral concentration of tissues and organs gradually increased with a peak of up to 7.13 x 10(4) copies/microL. The viral concentration of most organs decreased by the 10th dpi, but those of the kidney, trachea and lung remained positive for IBV at 28 dpi and the heart was still positive for IBV at > 35 dpi. The results of this study, showed that the Jin-13 strain can cause prolonged virus excertion in chickens with severe renal damage.
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Animals , Chickens , Coronavirus Infections , Virology , Infectious bronchitis virus , Virulence , Physiology , Lung , Virology , Poultry Diseases , Virology , Reverse Transcriptase Polymerase Chain Reaction , Specific Pathogen-Free Organisms , Trachea , Virology , VirulenceABSTRACT
Encephalomyocarditis virus (EMCV) is a natural epidemic zoonotic pathogen. However, no reports have been published regarding the isolation, identification and full-length genome of EMCV from a local aardvark population. In present study, an EMCV isolate HNXX13 was isolated from aardvarks named Huainan-pig in Henan Province. The systematic identification, full-length genome sequencing and molecular characteristic analysis of the isolate HNXX13 were conducted. The result showed that the isolate was spherical with a diameter of 24-30 nm, neither heat- nor acid-resistant, sensitive to trypsin, insensitive to chloroform, not protected by bivalent cationic, and the specific fluorescence was observed in the cytoplasm of BHK-21 cells infected with the isolate by using indirect fluorescence assay. The full-length genome of EMCV HNXX13 generated a 7 725bp sequence (GenBank: F771002), with 81.0%-99.9% nucleotide identity to reference strains from different animals, and 99.5% with a Chinese reference strain isolated earlier from a commercial pig herd. The phylogenetic tree based on the full-length genome and ORF sequences identified that all EMCV strains were divided into three groups G1, G2 and G3, and strain HNXX13 belonging to the G1 group with other Chinese reference strains. The result also identified that this EMCV infection could cause severe clinical signs in a local aardvark population, and enriches the molecular epidemiological data of EMCV in China. Regional differences exist in EMCV genome and transmission is limited within a certain area. However, the cross-infection and transmission of EMCV between aardvark and mice appears most likely. Mutations have occurred in some amino acids of EMCV strain HNXX13 during the transmission in local aardvark herd and these mutations might make the virus easier to infect the aardvark.
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Animals , Mice , Animals, Wild , Virology , Cardiovirus Infections , Virology , China , Encephalomyocarditis virus , Classification , Genetics , Genome, Viral , Molecular Sequence Data , Phylogeny , Xenarthra , VirologyABSTRACT
In early 2011, the serious outbreak of porcine pseudorabies virus (PRV) infection suddenly recurred in Henan and neighboring Provinces. To investigate the etiology of massive infection with PRV, 16 800 serum samples, 905 porcine epidemic diarrhea virus (PEDV) back-feeding tissues, and 56 PR gene deleted live vaccines were colleted from January 2011 to May 2013 to detect PRV field infection using a PRV gE antibody test kit. The gE and TK genes of 11 new epidemic PRV strains were sequenced by PCR, and their molecular characteristics were analyzed. Moreover, virus titer determination, protective test against PRV, and vaccine potency testing were performed. The results showed that the detection rate of PRV field infection-positive pig farms was 68.06%, and the overall positive rate of PRV field infection in serum was 38.47%; the positive rates in breeding sows, breeding boars, reserve pigs, and commercial pigs were 40.12%, 30.88%, 54.67%, and 26.52%, respectively. The new epidemic strains were in the same evolutionary branch and belonged to the virulent strain group. Compared with the classical PRV strain, the virulence of new epidemic strains changed a little. The length of gE gene was 1 787 bp, and the length of TK gene was 963 bp. The nucleotide homologies of gE and TK genes to Chinese reference strains were 98.2%-99.8% and 98.90%-99.6%, respectively, and the amino acid homologies were 97.1%-99.8% and 97.5%-99.4%, respectively. Commercial vaccine had a 100% protective effect against the new epidemic strains. The positive rate of PRV field infection was 0% in vaccine and 40.44% in back-feeding tissues. The results confirmed that PRV field infection rates were rising sharply among pigs in Henan and neighboring Provinces after 2011. The main virulence genes of new epidemic PRV strains did not change significantly over the years. PR gene deleted live vaccines had no PRV field infection and could completely resist the attack of new strains. The virus carriage of breeding boars and reserve pigs and the serious PRV field infection in PEDV back-feeding tissues were the main causative factors for massive infection with PRV and epidemic outbreak in Henan and neighboring Provinces from 2011 to 2013.
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Animals , Female , Male , Amino Acid Sequence , Animal Feed , Virology , China , Epidemiology , Epidemics , Herpesvirus 1, Suid , Chemistry , Classification , Genetics , Molecular Sequence Data , Phylogeny , Pseudorabies , Epidemiology , Virology , Sequence Alignment , Sequence Homology, Amino Acid , Sus scrofa , Swine , Swine Diseases , Epidemiology , Virology , Viral Proteins , Chemistry , GeneticsABSTRACT
A recombinant replication-defective adenovirus expressing the major epitopes of porcine circovirus-2 (PCV-2) capsid protein (rAd/Cap/518) was previously constructed and shown to induce mucosal immunity in mice following intranasal delivery. In the present study, immune responses induced by intranasal immunization with a combination of rAd/Cap/518 and cytosine-phosphate-guanosine oligodeoxynucleotides (CpG ODN) were evaluated in mice. The levels of PCV-2-specific IgG in serum and IgA in saliva, lung, and intestinal fluids were significantly higher in the group immunized with rAd/Cap/518 and CpG ODN than animals immunized with rAd/Cap/518 alone. The frequencies of IL-2-secreting CD4+ T cells and IFN-gamma-producing CD8+ T cells were significantly higher in the combined immunization group than mice immunized with rAd/Cap/518 alone. The frequencies of CD3+, CD3+CD4+CD8-, and CD3+CD4-CD8+ T cells in the combined immunization group were similar to that treated with CpG ODN alone, but significantly higher than mice that did not receive CpG ODN. PCV-2 load after challenge in the combined immunization group was significantly lower than that in the phosphate-buffered saline placebo group and approximately 7-fold lower in the group treated with CpG ODN alone. These results indicate that rAd/Cap/518 combined with CpG ODN can enhance systemic and local mucosal immunity in mice, and represent a promising synergetic mucosal vaccine against PCV-2.
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Animals , Female , Mice , Adenoviridae/genetics , Administration, Intranasal , Capsid Proteins/genetics , Circoviridae Infections/immunology , Circovirus/genetics , Epitopes/genetics , Immunity, Mucosal/immunology , Immunoglobulin A/blood , Immunoglobulin G/blood , Mice, Inbred BALB C , Oligodeoxyribonucleotides/genetics , Vaccines, Synthetic/genetics , Viral Vaccines/administration & dosageABSTRACT
Since late 2010, porcine epidemic diarrhea virus (PEDV) has been re-emerging in central China. To explore the possible reason of the PEDV outbreaks, twelve PEDV field strains were isolated from different swine breeding farms in central China during 2010-2012, and molecular diversity, phylogenetic relationships of these strains with other PEDV reference strains were investigated. Sequence analysis of S, M and ORE3 genes revealed that the central China PEDV isolates had several specific nucleotides and amino acids which were different from PEDV reference strains. In addition, the entire S genes of eleven central China PEDV isolates were found to be nine nucleotides longer in length than CV777 and large number of amino acid variations was accumulated in the N-terminal region of S gene. Phylogenetic analysis showed that the central China PEDV isolates had close relationship with Korea strains (2007-2009), Thailand strains (2007-2008), Vietnam strains (2009-2010), Japan strains (2010), and other prevailing strains from other parts of China (2010-2012). However, they differed genetically from European strains (CV777, Brl/87), China strains (2003-2007) and the vaccine strains (CV777) used in China. These results imply that a rapid variation and evolution of central China PEDV strains has occurred in recent years, and a more efficient vaccine strain should be selected to prevent and control outbreaks of PEDV in China.
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Animals , China , Epidemiology , Disease Outbreaks , Feces , Virology , Molecular Sequence Data , Open Reading Frames , Phylogeny , Porcine epidemic diarrhea virus , Classification , Genetics , Swine , Swine Diseases , Epidemiology , Virology , Viral Proteins , GeneticsABSTRACT
To meet the needs of detection of infectious bursal disease virus (IBDV) under high efficient culture, a SYBR Green I real-time RT-PCR (qRT-PCR) was developed using a pair of primers specific to the conserved region of VP4 gene of IBDV and compared with TCID50 method by monitoring the proliferation dynamics of IBDV in DF-1 cell line adherent to micro carrier in tubular reactor. The results showed that the RT-PCRassay was linear in the range of 4. 03 X 10(1)-10(9) copies/microL. The IBDV RNA detection limit was 40 copies/microL, which was 1 000 times more sensitive than conventional PCR. No cross-reactions with other viruses was observed. The intra-assay coefficient of variation was less than 0.05%. There was a parallel correlation of IBDV proliferation dynamics in DF-1 cell under Micro carrier suspension and static adherent culture by the qRT-PCR assay and TCID50 method. The detection results of the IBDV samples from tubular and flask culture showed the differences of the micro carrier and adherent culture by both methods. In conclusion, the qRT-PCR assay is more rapid and sensitive than the TCID50 method, which is more appropriate for the real time detection of IBDV.
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Animals , Calibration , Cell Line , Conserved Sequence , DNA Primers , Genetics , Infectious bursal disease virus , Genetics , Organic Chemicals , Chemistry , Metabolism , Real-Time Polymerase Chain Reaction , Methods , Reproducibility of Results , Spectrometry, Fluorescence , Viral Proteins , Genetics , Virus ReplicationABSTRACT
<p><b>OBJECTIVE</b>To study the chemical constituents from the whole plants of Polygala telephioides.</p><p><b>METHOD</b>Compounds were isolated by repeated silica gel and Sephadex LH -20 column chromatography, and their structures were determined by spectral analysis and physicochemical properties.</p><p><b>RESULT</b>Six xanthones were isolated from P. telephioides, and their structures were identified as 1, 3, 7-trihydroxyxanthone (1), 1, 7-dihydroxy-3-methoxyxanthone (2), 1, 3-dihydroxyxanthone (3), 1, 7-dihydroxyxanthone (4), 1-methoxy-2, 3-methylenedioxyxanthone (5) and 1, 7-dimethoxyxanthone (6).</p><p><b>CONCLUSION</b>All the compounds were obtained from this plant for the first time.</p>
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Plants, Medicinal , Chemistry , Polygala , Chemistry , Xanthones , ChemistryABSTRACT
The progress in the research of the chemical components and pharmacological activities of Lysimachia was reviewed. Lysimachia mainly contain flavonoids, saponins and phenolic acids, and some of the plants have been used in the treatment of fever, ulcers, diarrhea and as analgesic or anti-inflammatory agents. The plants of genus Lysimachia are widespread in China, so it is a singificants work to study their chemical ingredients and pharmacological activities.